Clock face



FIG. 1 is a top and right front perspective view of a clock face showing my new design;

FIG. 2 is a typical side elevational view thereof;

FIG. 3 is a rear elevational view thereof; and

FIG. 4 is a rear elevational view of another embodiment of my new design of FIGS. 1-3, the broken-line showing being for environmental purposes only and forming no part of the claimed design. 

The ornamental design for clock face, as shown and described. 